Re: [PATCH] Pass meta-data from message to dlrs

Alejandro Guerrieri <[email protected]>
Newsgroups gmane.comp.mobile.kannel.devel
Message-ID <[email protected]>
BTW, while I'm adding the meta_data field on all DB engines, and I've  
noticed a difference on dlr_oracle.c, on dlr_get_oracle:

     sql = octstr_format("SELECT %S, %S, %S, %S, %S, %S, %S FROM %S  
WHERE %S=:1 AND %S=:2 AND %S=:3 AND ROWNUM < 2",
                         fields->field_mask, fields->field_serv,
                         fields->field_url, fields->field_src,
                         fields->field_dst, fields->field_boxc,
                         fields->table, fields->field_smsc,
                         fields->field_ts, fields->field_dst);

While on all other engines, field_dst is not used on the condition:

pgsql:
	sql = octstr_format("SELECT %s, %s, %s, %s, %s, %s FROM %s WHERE  
%s='%s' AND %s='%s' LIMIT 1;",

sdb:
	sql = octstr_format("SELECT %s, %s, %s, %s, %s, %s FROM %s WHERE  
%s='%s' AND %s='%s' %s", [NO LIMIT CLAUSE]

mysql:
	sql = octstr_format("SELECT %S, %S, %S, %S, %S, %S FROM %S WHERE %S=?  
AND %S=? LIMIT 1",

and so on.

Any reason why this is done that way? Which one should be fixed?

Regards,
--
Alejandro Guerrieri
[email protected]



On 04/09/2009, at 13:46, Alexander Malysh wrote:

>
> Am 04.09.2009 um 13:05 schrieb Alejandro Guerrieri:
>
>> 2009-09-04 Alexander Malysh <amalysh at kannel.org>
>>     * aclocal.m4, configure, configure.in, gw/dlr_mysql.c, gwlib/ 
>> dbpool_mysql.c,
>>       test/test_dbpool.c: implemented select/update function calls  
>> for dbpool_mysql. This
>>       require mysql prepaid statement support and therefore mysql  
>> version >= 4.1.
>>       Changed dlr_mysql to use these new function calls. This fixes  
>> #258.
>>
>> Would make sense if I update sqlbox to use those calls as well right?
>
> yep
>
>
>>
>> Regards,
>> --
>> Alejandro Guerrieri
>> [email protected]
>>
>>
>>
>> On 04/09/2009, at 9:45, Alexander Malysh wrote:
>>
>>> ahh alex,
>>> before you start to add meta_data to db storages please give me  
>>> time to merge mysql-prepaid branch. Just update your cvs in  
>>> 30-60min.
>>>
>>> Thanks,
>>> Alexander Malysh
>>>
>>> Am 04.09.2009 um 09:40 schrieb Alexander Malysh:
>>>
>>>> Hi Alex,
>>>>
>>>> if you add:
>>>> +   Octstr *meta_data;
>>>> to dlr struct then you have add meta_data column to all storage  
>>>> types :) otherwise don't add it. If you ask me, I would say, if  
>>>> you add it for faked dlrs then you have
>>>> to add it to db storages as well.
>>>>
>>>> as to the points:
>>>> 1) +0
>>>> 2) -1 because I don't see reason to add internal smpp sequence.  
>>>> this is just one counter and will not add any useful information.
>>>> 3) ++1 :)
>>>>
>>>> Thanks,
>>>> Alexander Malysh
>>>>
>>>> Am 04.09.2009 um 01:08 schrieb Alejandro Guerrieri:
>>>>
>>>>> Ok, silly diff errors aside (I wasn't including dlr_p.h :P),  
>>>>> here's the new patches also changing the error code format as  
>>>>> Alex suggested.
>>>>>
>>>>> <kannel-dlr-meta-data.diff>
>>>>> <kannel-dlr-command-status.diff>
>>>>>
>>>>> Userguide patch coming later.
>>>>>
>>>>> Just a few more ideas to consider:
>>>>>
>>>>> 1. Adding one more called "dlr_status_text" with the text  
>>>>> description from smpp_error_to_string(pdu- 
>>>>> >u.submit_sm_resp.command_status). Not sure if it makes sense,  
>>>>> this could be done at the application level with a simple table...
>>>>>
>>>>> 2. Adding one more called "dlr_sequence" with the  
>>>>> sequence_number parameter.
>>>>>
>>>>> 3. Extending patch #1 adding the meta-data column on all DB  
>>>>> implementations, so meta-data could be passed and stored on  
>>>>> dlr's other than the first one generated by kannel.
>>>>>
>>>>> Regards,
>>>>> --
>>>>> Alejandro Guerrieri
>>>>> [email protected]
>>>>>
>>>>>
>>>>>
>>>>> On 03/09/2009, at 23:33, Alexander Malysh wrote:
>>>>>
>>>>>> Hi Alex,
>>>>>>
>>>>>> first patch seems still broken:
>>>>>> +    dlr->meta_data = (msg->sms.meta_data ?  
>>>>>> octstr_duplicate(msg->sms.meta_data) : octstr_create(""));
>>>>>>
>>>>>> we don't have meta_data in dlr struct. otherwise +1
>>>>>>
>>>>>> second patch:
>>>>>> +            if (msg->sms.meta_data == NULL)
>>>>>> +                msg->sms.meta_data = octstr_create("");
>>>>>> +            meta_data_set_value(msg->sms.meta_data, "smpp",  
>>>>>> octstr_imm("dlr_status"),
>>>>>> +                                octstr_format("%d", pdu- 
>>>>>> >u.submit_sm_resp.command_status), 1);
>>>>>> +
>>>>>>
>>>>>> Would it it not better to have error code formated as smpp-tlv  
>>>>>> group and as error message?
>>>>>> +                                octstr_format("0x%08lx", pdu- 
>>>>>> >u.submit_sm_resp.command_status), 1);
>>>>>>
>>>>>> Thanks,
>>>>>> Alexander Malysh
>>>>>>
>>>>>>
>>>>>> Am 03.09.2009 um 21:13 schrieb Alejandro Guerrieri:
>>>>>>
>>>>>>> Oh, I see, I've attached the ~ backup file from vim. This are  
>>>>>>> the right files, just in case:
>>>>>>>
>>>>>>> <kannel-dlr-command-status.diff>
>>>>>>> <kannel-dlr-meta-data.diff>
>>>>>>>
>>>>>>> --
>>>>>>> Alejandro Guerrieri
>>>>>>> [email protected]
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 03/09/2009, at 21:06, Alejandro Guerrieri wrote:
>>>>>>>
>>>>>>>> Oh, that must have filtered into the patch. Weird :P
>>>>>>>>
>>>>>>>> Sorry, it's safe to remove it.
>>>>>>>>
>>>>>>>> Regards,
>>>>>>>> --
>>>>>>>> Alejandro Guerrieri
>>>>>>>> [email protected]
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 03/09/2009, at 20:56, Gustavo Mohme C. wrote:
>>>>>>>>
>>>>>>>>> Hi Alejandro,
>>>>>>>>> I get this error after applying your patch.
>>>>>>>>>
>>>>>>>>> gw/dlr.c: In function ‘dlr_add’:
>>>>>>>>> gw/dlr.c:352: error: ‘struct dlr_entry’ has no member named  
>>>>>>>>> ‘meta_data’
>>>>>>>>> make: *** [gw/dlr.o] Error 1
>>>>>>>>>
>>>>>>>>> After editing /gw/dlr_p.h and adding meta_data to the struct  
>>>>>>>>> dlr_entry, it compiled with no complaints. Is this the  
>>>>>>>>> correct thing to do?
>>>>>>>>> I was patching the latest kannel snapshot....
>>>>>>>>> Thanks,
>>>>>>>>> Gustavo
>>>>>>>>>
>>>>>>>>> On Thu, Sep 3, 2009 at 3:39 AM, Alejandro Guerrieri <[email protected] 
>>>>>>>>> > wrote:
>>>>>>>>> Hi,
>>>>>>>>>
>>>>>>>>> This is a set of two patches, though they're both very  
>>>>>>>>> simple and could have been mixed, I've preferred to split to  
>>>>>>>>> honor the rule of not mixing features in a single patch.
>>>>>>>>>
>>>>>>>>> Patch #1, kannel-drl-meta-data.diff allows meta-data to be  
>>>>>>>>> passed when sending a message to come back into the "fake"  
>>>>>>>>> dlr that kannel generates when the smsc accepts or rejects a  
>>>>>>>>> message. It could be extended to work with the different dlr  
>>>>>>>>> engines so the meta-data would be also passed on the  
>>>>>>>>> intermediate and final dlr's delivered by the carriers  
>>>>>>>>> (though it would require changes on the database structure  
>>>>>>>>> to add a "meta_data" column of course. I'm not sure this  
>>>>>>>>> would be needed, the dlr-url could be easily abused to pass  
>>>>>>>>> application-specific parameters without much hassle.
>>>>>>>>>
>>>>>>>>> Patch #2, kannel-dlr-command-status.diff builds on top of  
>>>>>>>>> patch #1 and creates a meta data value called "dlr_status"  
>>>>>>>>> that comes back on the "fake" dlr generated by kannel (This  
>>>>>>>>> was the real reason why patch #1 was created). The value  
>>>>>>>>> there is the "command_status" value some people on the list  
>>>>>>>>> needs to get from the submit_sm_resp PDU's.
>>>>>>>>>
>>>>>>>>> Example usage:
>>>>>>>>>
>>>>>>>>> On sendsms:
>>>>>>>>>
>>>>>>>>> http://localhost:13013/cgi-bin/sendsms?username=kannel&password=kannel&from=12345&to=12345678&smsc=mysmsc&text=Hello&dlr-mask=31&meta-data=%3Fsmpp%3Fmy_own_field%3D1234&dlr-url=http%3A%2F%2Flocalhost%2Fx%3Fdata%3D%25D
>>>>>>>>>
>>>>>>>>> Notes:
>>>>>>>>>
>>>>>>>>> meta-data is urlencoded version of: ?smpp?my_own_field=1234
>>>>>>>>> dlr-url is urlencoded version of: http://localhost/x?data=%D
>>>>>>>>>
>>>>>>>>> So, after applying Patch #1, kannel would call the following  
>>>>>>>>> url:
>>>>>>>>>
>>>>>>>>> http://localhost/x?md=%3Fsmpp%3Fmy_own_field%3D1234
>>>>>>>>>
>>>>>>>>> The "md" parameter, once urldecoded would look like:
>>>>>>>>>
>>>>>>>>> ?smpp?my_own_field=1234
>>>>>>>>>
>>>>>>>>> You can pass as many parameters as you want of course and  
>>>>>>>>> they would be added to meta-data along with any other fields  
>>>>>>>>> you've defined on your smpp-tlv groups, etc.
>>>>>>>>>
>>>>>>>>> So far so good, in fact you could pass this kind of stuff on  
>>>>>>>>> regular url variables, but the goal of this patch was to  
>>>>>>>>> allow to add stuff back from the smsc's response.
>>>>>>>>>
>>>>>>>>> Now, with patch #2 also applied, the url returned would be  
>>>>>>>>> something like this:
>>>>>>>>>
>>>>>>>>> http://localhost/x?md=%3Fsmpp%3Fmy_own_field%3D1234%26dlr_status%3D69%26
>>>>>>>>>
>>>>>>>>> The "md" parameter, once urldecoded would look like:
>>>>>>>>>
>>>>>>>>> ?smpp?my_own_field=1234&dlr_status=69&
>>>>>>>>>
>>>>>>>>> In this case, dlr_status gets loaded with submit_sm_resp's  
>>>>>>>>> command_status which was: 69 = 0x00000045 (Submit Failed).
>>>>>>>>>
>>>>>>>>> The "sequence_number" could be added just as easily (not a  
>>>>>>>>> bad idea imho). What do you think? "dlr_sequence" or  
>>>>>>>>> "dlr_seq" would be ok?
>>>>>>>>>
>>>>>>>>> I'm writing the userguide patch if this goes forward of  
>>>>>>>>> course.
>>>>>>>>>
>>>>>>>>> Comments?
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> --
>>>>>>>>> Alejandro Guerrieri
>>>>>>>>> [email protected]
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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